TY - JOUR
T1 - Magnetic properties of Ni nanoparticles
AU - Jeon, Y. T.
AU - Moon, J. Y.
AU - Lee, G. H.
AU - Park, J.
PY - 2006/10/30
Y1 - 2006/10/30
N2 - We investigated the size dependent magnetic properties of Ni nanoparticles. We prepared four samples with average particle diameters of 7.0, 14.0, 16.5, and 20.0 nm. The blocking temperatures (TBs) were 40.0, 150.0, 250.0, and ∼ 300.0 K for the above Ni nanoparticles, respectively. Saturation magnetization increased with increasing particle diameter due to the reduced magnetic moments of surface atoms. The coercivities at 5 K ranged from 270 and 340 Oe, whereas those at 300 K were zero due to superparamagnetism.
AB - We investigated the size dependent magnetic properties of Ni nanoparticles. We prepared four samples with average particle diameters of 7.0, 14.0, 16.5, and 20.0 nm. The blocking temperatures (TBs) were 40.0, 150.0, 250.0, and ∼ 300.0 K for the above Ni nanoparticles, respectively. Saturation magnetization increased with increasing particle diameter due to the reduced magnetic moments of surface atoms. The coercivities at 5 K ranged from 270 and 340 Oe, whereas those at 300 K were zero due to superparamagnetism.
KW - Ni nanoparticles
KW - Size dependent magnetic properties
UR - http://www.scopus.com/inward/record.url?scp=33751287437&partnerID=8YFLogxK
U2 - 10.1142/s0217979206041409
DO - 10.1142/s0217979206041409
M3 - Article
AN - SCOPUS:33751287437
SN - 0217-9792
VL - 20
SP - 4390
EP - 4394
JO - International Journal of Modern Physics B
JF - International Journal of Modern Physics B
IS - 25-27
ER -